TD-8840 User Guide ADSL2+ Modem Router

Rev: 2.0.1

1910010192
COPYRIGHT & TRADEMARKS
Specifications are subject to change without notice. registered trademarks of their respective holders. No part of the specifications may be reproduced in any form or by any means or used to make any derivative such as translation, transformation, or adaptation without permission from TP-LINK TECHNOLOGIES CO., LTD. Copyright 2009 TP-LINK TECHNOLOGIES CO., LTD. All rights reserved. http://www.tp-link.com is a registered trademark of
TP-LINK TECHNOLOGIES CO., LTD. Other brands and product names are trademarks or

FCC STATEMENT

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/ TV technician for help.
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: 1) 2) This device may not cause harmful interference. This device must accept any interference received, including interference that may cause undesired operation. Any changes or modifications not expressly approved by the party responsible for compliance could void the users authority to operate the equipment.

CE Mark Warning

This is a class B product. In a domestic environment, this product may cause radio interference, in which case the user may be required to take adequate measures.
EC DECLARATION OF CONFORMITY (EUROPE)
In compliance with the EMC Directive 89/336/EEC, Low Voltage Directive 73/23/EEC, this product meets the requirements of the following standards: EN55022 EN55024 EN60950

SAFETY NOTICES

Caution: Do not use this product near water, for example, in a wet basement or near a swimming pool.

CONTENTS

Package Contents.... 1 Chapter 1.
1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8

Introduction... 2

Product Overview.... 2 Main Features.... 2 Supporting Protocol.... 3 Transmit Data-rate.... 3 ATM Property... 3 System Support.... 4 Working Environment... 4 Conventions.... 2

Chapter 2.

2.1 2.2 2.3 2.4 2.5
Hardware Installation Guide.. 5
System Requirement.... 5 The Front Panel.... 5 The Rear Panel.... 6 Environment Requirements.... 6 Hardware Installation Procedures.... 6

Chapter 3.

3.1 3.2 3.3
Quick Installation Guide... 8
Configure PC.... 8 Login.... 12 Quick Setup.... 13
3.3.1 3.3.2 3.3.3 3.3.4 3.3.5 PPPoA....14 PPPoE....15 MER.....17 IPoA.....18 Bridging....19

Chapter 4.

4.1 4.2 4.3
Software Configuration... 21
Device Info.... 21 Quick Setup.... 21 Advanced Setup.... 21
4.3.1 4.3.2 4.3.3 4.3.4 4.3.5 WAN....22 LAN....33 MAC Clone....36 Security.....37 Routing.....40

DSL....42

4.4 4.5
Diagnostics.... 44 Management.... 45
4.5.1 4.5.2 4.5.3 4.5.4 4.5.5 4.5.6 Settings.....45 System Log....47 SNMP Agent....48 Access Control....49 Update Firmware...51 Save/Reboot....52

Chapter 5.

Software Dial... 53
Appendix A: FAQ.... 55 Appendix B: Default Configuration... 57

TD-8840

ADSL2+ Modem Router User Guide

Package Contents

The following items should be found in your package: One TD-8840 ADSL2+ Modem Router One AC power Adapter for TD-8840 ADSL2+ Modem Router One Resource CD for TD-8840 ADSL2+ Modem Router, including:

This Guide Other Helpful Information Quick installation Guide Program
Quick installation Guide One RJ45 cable Two RJ11 cables One ADSL splitter Note: Make sure that the package contains the above items. If any of the listed items are damaged or missing, please contact with your distributor.

Chapter 1. Introduction

Thank you for choosing the TD-8840 ADSL2+ Modem Router.

Product Overview

With the excellent circuit design and high quality production, we guarantee the ADSL2+ Modem Routers high performance, great stability and easy to use. The TD-8840 uses integrated ADSL2+ transceiver. The AFE supports full-rate ADSL connectivity conforming to the ITU and ANSI specifications. In addition to the basic DMT physical layer functions, the ADSL PHY supports dual latency ADSL framing (fast and interleaved) and the I.432 ATM Physical Layer. The TD-8840 is a complete plug-and-play solution. With standard Ethernet interface, it can be directly connected to any 10M/100M Ethernet devices, and support Auto-MDIX. The TD-8840 uses not only html (web mode through Ethernet port) but also external utility software to configure the Router. You can download it from our website (http://www.tp-link.com).

Conventions

The Router or TD-8840, or device mentioned in this User guide stands for TD-8840 ADSL2+ Modem Router without any explanations. Parameters provided in the pictures are just references for setting up the product, which may differ from the actual situation. You can set the parameters according to your demand. Note: The two devices of TD-8840 and TD-8840B are sharing this User Guide. For simplicity, we will take TD-8840 for example throughout this Guide.

Main Features

High speed and asymmetry data transmit mode, built-in 4-port switch realize multi-user to share wide-band internet access Supports All ADSL2+ industrial standards Compatible with all mainstream DSLAM (CO) Firmware upgradeable Provides integrated access of internet and route function which face to SOHO user 2
TD-8840 Advanced DMT modulation and demodulation Real-time Configuration and device monitoring
Quick response semi-conductive surge protect circuit, provides reliable ESD and surge-protect function

Supporting Protocol

- G.992.1 (G.dmt) - Annex A/B/C - G.992.2 (G.lite) - Annex A/B/C - ANSI T1.413 - G.992.3 (ADSL2) - Annex A/B/C/M and Annex L (RE-DSL) compliant - G.992.5 (ADSL2+) Annex A/B/C and Annex L (RE-DSL) compliant - ADSL dual latency (fast path and interleaved path) - I.432 ATM physical layer compliant - Supports RFC2364 (PPPoA) - Supports RFC2516 (PPPoE) - Supports RFC1483 (EoA) (Bridged *and Router) - Supports RFC1577 (IPoA) Note: * Needs the third-party software.

Transmit Data-rate

Max download data-rate: 24Mbps Max upload data-rate: 3.5Mbps Max line length: 6Km

ATM Property

AAL0, AAL5, OAM, RM, and raw cell types supported Direct hardware support for 4 Receive VCs, with additional RX VCs and TX VCs supported in software Full 24-bit Virtual Path Identifier (VPI) and Virtual Circuit Identifier (VCI) 3

System Support

Support PVC Support NATDHCP and so on Support IEEE 802.3IEEE 802.3u Support 10Base-T/100BASE-TX full-duplex or half duplex Ethernet Support Auto-MDIX

Working Environment

Operating temperature: 0 ~40 Storage temperature: -40 ~70 Working Humidity: 10%~90% RH (non-condensing) Storage Humidity: 5%~90% RH (non-condensing)
Chapter 2. Hardware Installation Guide
The TD-8840 maintains five separate interfaces: four Ethernet and one ADSL interface. The Router should not be located where it will be exposed to moisture or excessive heat. Place the Router in a location where it can be safely connected to the various devices. The electrical outlet shall be installed near the device and shall be easily accessible.

2.1 System Requirement

Confirm your computer has been installed with networking interface card (NIC) before connecting ADSL2+ Modem Router to your computer, with the operating system supporting the TCP/IP protocol.

2.2 The Front Panel

The front panel of ADSL2+ Modem Router includes one power indicator and seven function indicators, as explained in chart below. LED Explanation Name Power Off On ADSL Flash Off On Internet Flash Off On 1~4 (LAN) Off Flash Power is off. The LINE port is linked up. The ADSL negotiation is in progress. The LINE port is linked down. A successful PPP connection has been built. Data is being transferred over the Internet. There is no successful PPP connection or the Router works on Bridge mode. There is a successful connection on the corresponding 1~4 (LAN) port but no activity. There is no connection on the corresponding 1~4 (LAN) port or the connection is abnormal. Data is being transferred over the 1~4 (LAN) port. Status On Indication Power is on.

The Rear Panel

ON/OFF: Turn on/off the ADSL2+ Modem Routers power. POWER: Please do not use any unknown power adapter; otherwise your ADSL2+ Modem Router may be damaged. RESET (reset default): With the Router powered on, use a pin to press and hold the Reset button for at least 5 seconds. And then release the button and wait the Router to reboot to its factory default settings. 1~4(LAN): Connect with your computers NIC. LINE (WAN): Connect to the MODEM Port of Splitter or connect to the telephone line port.

Environment Requirements

Place your Router on the flat and stable platform. Place your Router in a well ventilated place far from direct sunlight, any heater or heating vent. Leave at least 2 inches (5cm) space around the device for heat dissipation. Keep your Router away from appliances with a strong electric field or magnetic field, such as a microwave oven or refrigerator. Turn off your Router and unplug the power adapter in a lighting storm to avoid damage. The electrical outlet shall be installed near the device and shall be easily accessible.
Hardware Installation Procedures
Before connecting the Router to your computer, make sure your broadband service provided by your ISP is available. Cut off the power supply and keep your hands dry. The procedure to connect the Router can be described in the following steps. First Step: Connect the MODEM port of Splitter with the TD-8840 ADSL2+ Modem Routers LINE port by telephone line. If you need to use a telephone, please attach telephone line into the phone port of Splitter. Second Step: Connect category 5 cable with RJ45 jacks to the Routers LAN port and your computers NIC. 6
Third Step: Plug one end of the AC Power Adapter into the Power jack on the Router and the other end to a standard electrical outlet. Last Step: Check the line connection to see if everything is ready. Power up finally.

Figure 2-1

Chapter 3. Quick Installation Guide

3.1 Configure PC

After you directly connect your PC to the TD-8840 or connect your adapter to a Hub/Switch which has connected to the Router, you need to configure your PCs IP address. Now you have two ways to configure the TCP/IP protocol below: Setting IP address automatically Step 1: Click the Start menu on your desktop, right click My Network Places, and then select Properties (shown in Figure 3-1).
Figure 3-1 Step 2: Right click Local Area Connection (LAN), and then select Properties.
Figure 3-2 Step 3: Select General tab, highlight Internet Protocol (TCP/IP), and then click the Properties button.
Figure 3-3 Step 4: Select Obtain an IP address automatically and Obtain DNS server address automatically in the screen below. And then click OK. 9
Figure 3-4 Setting IP address manually The default IP address of the ADSL2+ Modem Router is 192.168.1.1, and the default Subnet Mask is 255.255.255.0. These values can be seen from the LAN, and can be changed as your desire. As an example, we use the default values for description in this guide. Step 1: Select Use the following IP address radio button in the next screen. Step 2: Enter the IP address as 192.168.1.* (* is any value between 2 to 254). The Subnet mask is 255.255.255.0. Then type the ADSL Routers LAN IP address 192.168.1.1 into the Default gateway field. Step 3: Select Use the following DNS server addresses radio button. In the Preferred DNS Server field you can enter the same value as the Default gateway or type the local DNS server IP address.

Chapter 4. Software Configuration
This User Guide recommends using the Quick Installation Guide for first-time installation. For advanced users, if you want to know more about this device and make use of its functions adequately, maybe you will get help from this chapter to configure the advanced settings through the Web-based Utility. After your successful login, you can configure and manage the device.

Device Info

The Device Info page provides the current information about the ADSL 2+ Modem Router. All information is read-only.

Figure 4-1

Please refer to 3.3 Quick Setup.

Advanced Setup

Choose Advanced Setup, and you can see the submenus as shown in Figure 4-2.

Figure 4-2 21

4.3.1 WAN
Choose Advanced Setup WAN, and you will see the page of Wide Area Network (WAN) Setup as shown in Figure 4-3.
Figure 4-3 There are 4 PVC links in the WAN setup page. Click the Add button or choose the appropriate PVC according to your need. Then you will enter the page of ATM PVC Configuration as shown in Figure 4-4.
Figure 4-4 Enter VPI/VCI value and service category provided by your ISP. Click Next to enter the next step. You will see the Figure 4-5.
Figure 4-5 After choosing the proper protocol, enter the correct parameters supported by your ISP. Enable the configurations, and then you will go to the Internet. Note: The type of network protocol selected may be different in different areas. There are five types Figure 4-5, so you should ask your ISP to acquire the Connection Type and Encapsulation Mode. PPP over ATM (PPPoA) If you select the protocol of PPP over ATM (PPPoA), you will see the Figure 4-6.
Figure 4-6 PPP Username: Enter your username for your PPPoA connection to identify and verify your account to the ISP. PPP Password: Enter your password for your PPPoA connection. Authentication Method: Choose a method of authentication, AUTO, PAP, CHAP, or MSCHAP. MTU: The default MTU value is 1480 Bytes. It is not recommended that you change the default value unless required by your ISP. The value should be between 512 and 1500. Dial on demand: If you check this box, the Internet connection can be terminated automatically after a specified inactivity period (Inactivity Timeout) and be re-established when you attempt to access the Internet again. The default value of Inactivity Timeout is 15. The value should be between 1 and 4320. PPP IP extension: If this box is checked, the IP address obtained by the Router will be assigned to the computer, and the NAT and Firewall will be disabled. Use Static IP Address: Check this box to use the static IP address to dial. The default value is disabled. Enable PPP Debug Mode: Check this box to enable the debug mode. The default value is disabled. 24

If you change the IP Address of LAN, you must use the new IP Address to log in the Router.
If the new LAN IP Address you set is not in the same subnet, the IP Address pool of the DHCP server will change accordingly at the same time while the Virtual Server and DMZ Host will not take effect until they are re-configured.
Disable/Enable DHCP Server - Disable or Enable the DHCP server. DHCP stands for Dynamic Host Configuration Protocol. The DHCP Server will automatically assign dynamic IP addresses to the computers on the network. If you disable the Server, you must have another DHCP server within your network or else you must configure the computer manually. The following options are available only when DHCP Server is enabled. Start IP Address - Specify an IP address for the DHCP Server to start with when assigning IP addresses. 192.168.1.100 is the default start address End IP Address - Specify an IP address for the DHCP Server to end with when assigning IP addresses. 192.168.1.199 is the default end address. Leased Time (hour) - The Lease Time is the amount of time a network user will be allowed connection to the Router with their current dynamic IP address. Enter the amount of time, in hours, and the user will be "leased" this dynamic IP address. After the time is up, the user will be automatically assigned a new dynamic IP address. The default value is 24 hours. Set Address Reservation - Click this button, you can view and add a reserved address for clients via the Address Reservation page as shown in Figure 4-21. When you specify a reserved IP address for a PC on the LAN, that PC will always receive the same IP address each time when it accesses the DHCP server. Reserved IP addresses should be assigned to servers that require permanent IP settings. Configure the second IP Address and Subnet Mask for LAN interface - Check this box, and you can configure a second IP address and subnet mask for the LAN interface. Save - Clicking this button only saves the LAN configuration data. Save/Reboot - Clicking this button not only saves the LAN configuration data but also reboots the Router to make the new configuration take effect. To Reserve an IP address 1. Click the Set Address Reservation button shown in Figure 4-21 to enter the screen as shown in Figure 4-22.

Figure 4-22 2. Click the New Entry button in Figure 4-22. Then Figure 4-23 will pop up.
Figure 4-23 3. Enter the MAC address in XX:XX:XX:XX:XX:XX format and reserved IP address in dotted-decimal notation of the computer for which you want to reserve an IP address. Note: The MAC Address and IP Address added in Figure 4-23 are used for illustrating. They may be different to your circs. 4. 5. Select Enable from the State drop-down list. Click the Save button, then you will go back to the Address Reservation screen and 35
TD-8840 see the new entry as shown in Figure 4-22. 6.
Click Save/Reboot button to save the settings and reboot the Router.
Note: The function won't take effect until the router reboots.

4.3.3 MAC Clone

Choose Advanced SetupMAC Clone menu, you can configure the MAC address of the WAN on the screen as shown in Figure 4-24.
Figure 4-24 Some ISPs require that you register the MAC Address of your adapter. Changes are rarely needed here. WAN MAC Address - This field displays the current MAC address of the WAN port. If your ISP requires you to register the MAC address, please enter the correct MAC address into this field in XX:XX:XX:XX:XX:XX format (X is any hexadecimal digit). Your PC's MAC Address - This field displays the MAC address of the PC that is managing the Router. If the MAC address is required, you can click the Clone MAC Address button and this MAC address will be filled in the WAN MAC Address field. Click Restore Factory MAC to restore the MAC address of WAN port to the factory default value. Click the Save/Reboot button to save your settings. Note: 1. 2. 3. Only the PC on your LAN can use the MAC Address Clone function. Your configuration won't take effect unless the ADSL Router is rebooted. MAC Clone can't be used with port mirror. If they are set both, the Router will be down. 36

4.3.4 Security

Choose Advanced SetupSecurity menu, you can do some security configurations for your Router. There are two submenus under the Security menu as shown in Figure 4-25.
Figure 4-25 4.3.4.1. MAC Filtering Choose SecurityMAC Filtering menu, you can configure the MAC filtering rule in the next screen similar to Figure 4-26. The MAC Address Filtering feature allows you to control the access of users on your local network basing on their MAC addresses.

Figure 4-26 MAC Filtering Global Policy - The default setting is FORWARDED. FORWARDED means that all MAC layer frames will be forwarded except those matching with any of the specified rules in the following table. BLOCKED means that all MAC layer frames will be blocked except those matching with any of the specified rules in the following table. You can change the policy by clicking the Change Policy button to go to the Change MAC Filtering Global Policy page as shown in Figure 4-27.
Figure 4-27 To add a new entry, follow the steps below. 1. 2. 3. 4. 5. 6. 7. Click the Add button in Figure 4-26 to go to the Add MAC Filter page as shown in Figure 4-28. Select the protocol type. Enter the destination MAC address. Enter the source MAC address. Select the frame direction. Select the WAN interfaces. Click Save/Apply to save your settings.

Figure 4-28

TD-8840 To remove an existing entry, follow the steps below. 1. 2.
Check the Remove box as shown in Figure 4-26 in the entry you want to remove. Click the Remove button.
4.3.4.2. Parental Control Choose SecurityParental Control menu, you can configure the parental control rule in the screen as shown in Figure 4-29. The Parental Control function can be used to restrict the time of internet surfing for the child.
Figure 4-29 For example: If you dont want your child_1 to surf the Internet from 18:00 to 20:00 on weekdays. You can follow the steps below. 1. Click the Add button in Figure 4-29 to go to the Time of Day Restriction page as shown in Figure 4-30. 2. 3. Create a User Name for your child, for example child_1. If you want to restrict the Browsers surfing time, check the Browsers MAC Address radio button. If you want to restrict other users surfing time, check the Other MAC Address radio button and enter the MAC address of the users computer, for example 00:11:22:33:44:CC. 4. 5. 6. Select the day or days you need. Enter the Start Blocking Time and End Blocking Time both in hh:mm format. Click Save/Apply button. Then you will go back to the Time of Day Restrictions page and see the list as shown in Figure 4-29.
Figure 4-30 To remove an existing entry, follow the steps below. 1. 2. Check the box in the Remove column of the entry as shown in Figure 4-29. Click the Remove button below.

4.3.5 Routing

Choose Advanced SetupRouting menu, you can see two submenus under the Routing menu as shown in Figure 4-31.
Figure 4-31 4.3.5.1. Default Gateway Choose RoutingDefault Gateway menu, you can configure the Default Gateway routing in the next screen as shown in Figure 4-32.
Figure 4-32 Enable Automatic Assigned Default Gateway - Select this checkbox, and then the Router will accept the first received default gateway assignment from one of the PPPoA, PPPoE or MER/DHCP enabled PVC(s). If this checkbox is not selected, you have to enter the static default gateway and/or an interface. Click Save/Apply to save your configurations. Note: If changing the Enable Automatic Assigned Default Gateway from unselected to selected, you must reboot the Router to get the automatic assigned default gateway. 4.3.5.2. Static Route Choose RoutingStatic Route menu, you can view and add the Static Route entry in the next screen as shown in Figure 4-33. A static route is a pre-determined path that network information must travel to reach a specific host or network.

Figure 4-33 41

TD-8840 To add a new entry, follow the steps below. 1.
Click the Add button in Figure 4-33 to go to the Static Route Add page as shown in Figure 4-34.
Enter the IP address of the destination network. This parameter specifies the IP network address of the final destination.
Enter the Subnet Mask for the destination. Select the Use Gateway IP Address checkbox and enter the IP address of the gateway. The gateway is an immediate neighbor of your ADSL Router that will forward the packet to the destination. On the LAN, the gateway must be a router on the same segment as your Router; over Internet (WAN), the gateway must be the IP address of one of the remote nodes.
Click Save/Apply to save your configurations. Then you will go back to Figure 4-33 and see your new entry.

Figure 4-34

4.3.6 DSL
Choose Advanced SetupDSL menu, you can view and configure the parameters in the screen as shown in Figure 4-35. If you want to make some advanced settings, click Advanced Settings button to go to the DSL Advanced Settings page as shown in Figure 4-36.

Figure 4-35

Figure 4-36 If you want to select the tone, click the Tone Selection button to go to the ADSL Tone Settings page as shown in Figure 4-37.

Figure 4-37

Diagnostics
Choose Diagnostics, and your modem will test your DSL connection. Then you will see the test results for the connectivity to your local network and your DSL service provider similar to Figure 4-38.

Figure 4-38

Management
Choose Management, and you can see the submenus as shown in Figure 4-39.

Figure 4-39

4.5.1 Settings
Choose ManagementSettings menu, and you will see the submenus as shown in Figure 4-40.
Figure 4-40 4.5.1.1. Backup Choose SettingsBackup menu, and you can save the current configuration of the Router as a backup file in Figure 4-41. Click Backup Settings button to save your current configuration.

Figure 4-41 45

TD-8840 4.5.1.2. Update

Choose SettingsUpdate menu, and you can update the settings for the Router as shown in Figure 4-42. Click the Browse button to find the file you want to update and then click Update Settings to begin the updating.
Figure 4-42 4.5.1.3. Restore Default Choose SettingsRestore Default menu, and you can restore the configurations of the Router to its factory default as shown in Figure 4-43. Click the Restore Default Settings button to begin restoring.

Figure 4-43 46

4.5.2 System Log
Choose ManagementSystem Log menu, and you can view and configure the logs of the Router in Figure 4-44. Click the View System Log button, and you will go to the System Log page and see the logs similar to Figure 4-45. Click the Configure System Log button, and you will go to the Configuration page as shown in Figure 4-46.

Figure 4-44

Figure 4-45 47
Figure 4-46 Log - Check the Disable radio button to disable the system log function. The default setting is enabled. Log Level - Select the log level, then all the events above or equal to the selected level will be logged. Display Level - All logged events above or equal to the selected level will be displayed. Mode - Select Local, Remote or Both. If the selected mode is Remote or Both, events will be sent to the specified IP address and UDP port of the remote syslog server. If the selected mode is Local or Both, events will be recorded in the local memory.

4.5.3 SNMP Agent

Choose ManagementSNMP Agent menu, and you will go to the SNMP (Simple Network Management Protocol) page as shown in Figure 4-47. SNMP allows a management application to retrieve statistics and status from the SNMP agent in this device. Select the desired values and click Save/Apply to configure the SNMP options.

Figure 4-47

4.5.4 Access Control
Choose ManagementAccess Control menu, and you will submenus as shown in Figure 4-48.
Figure 4-48 4.5.4.1. Service Choose Access ControlService menu, and you can enable or disable the services as shown in Figure 4-49. Click Save/Apply to save your configurations.

Figure 4-49 49

TD-8840 4.5.4.2. IP Address
Choose Access ControlIP Address menu, and can view and configure the IP address access control in the screen as shown in Figure 4-50. If enabled, only PCs with IP addresses listed are allowed to access the Router.
Figure 4-50 To add a new entry, follow the steps below. 1. Click the Add button in Figure 4-50 to go to the Access Control page in the screen as shown in Figure 4-51. 2. 3. Enter the IP address (e.g. 192.168.1.23) you want to add in the IP Address filed. Click Save/Apply to save your configuration.

Figure 4-51 4.5.4.3. Password Choose Access ControlPassword menu, and you can change the factory default password 50
TD-8840 of the Router in the screen as shown in Figure 4-52.

Figure 4-52

4.5.5 Update Firmware
Choose ManagementUpdate Firmware menu, and you can update the latest version of firmware for the Router in the screen as shown in Figure 4-53. Make sure the firmware or romfile you want to use is on the local hard drive of the computer. Click Browse to find the local hard drive and locate the firmware or romfile to be used for upgrade.
Figure 4-53 To upgrade the router's firmware, follow these instructions below. Download a more recent firmware upgrade file from the TP-LINK website (www.tp-link.com). Type the path and file name of the update file into the Firmware File Name field. Or click the Browse button to locate the update file. 3 Click the Update Firmware button.

4.5.6 Save/Reboot

Choose ManagementSave/Reboot menu, and you can save your configurations and reboot your Router to make the configurations take effect in the screen as shown in Figure 4-54.

Figure 4-54

Chapter 5. Software Dial
If TD-8840 CPE is working in bridged (RFC 1483 Bridged) mode when connecting to the Internet, you must install dial software on your PC. There are some software working on WINDOWS in market, examples as EnterNet3000RASPPPoEWinPeET. How do I set up the connection in the windows XP? The users of Windows XP can click the Start All Programs Accessories Communications New connection wizard, and then click Next to enter the configuration page. Select the connect to the Internet, and then click the Next button to enter the next page. Select the set up my connection manually, and click Next to enter the next page. Select the connect using a broadband connection that requires user name and password. Click Next to type the name of your ISP in the current page, and then click Next. Enter an ISP account name and password, and click Next. If you have forgotten an existing account name or password, please connect with your ISP. To create the connection and close this wizard, click Finish to add a shortcut to this connection to your desktop. When you want to access the Internet by ADSL, double-click this shortcut of dial connection on your desktop. Enter the account name and password, and click Connect to connect the Internet. How do I set up the connection in the Windows Vista? Users of Windows Vista can do as follows: Right-press Network Choose Properties, then you can see Figure 5-1.

Figure 5-1 Click Set up a connection or network in the left of this page. And choose Set up a dial-up connection in the new page; click Next. After that, you will see Figure 5-2; click Set up a connection anyway to enter next page.
Figure 5-2 Type the Dial-up phone number, the User name and password supplied by your ISP in the new page. If you have forgotten an existing user name or password, please connect with your ISP. Click Create to create the dial-up connection. Click Close to finish the setup. To connect to the Internet next time, click the Start button; click Connect to, and then click the connection you just created. 54

Appendix A:

What related parameters are required to acquire ISP when you want to access the Internet by ADSL2+ Modem Router? 1) Dial user: Connection protocol, User name, Password, Value of VPI/VCI, Encapsulation mode of AAL5 and so on. 2) Static IP user: Connection protocol, WAN IP Address, Subnet Mask, Gateway, DNS, Value of VPI/VCI, Encapsulation mode of AAL5 and so on.
About Connection protocol, VCI/VPI, Encapsulation mode of AAL5 1) This product supports the PPP protocol over ATM (PPPoA) PPP over Ethernet (PPPoE)MAC Encapsulation Routing (MER)IP over ATM (IPoA) and Bridging. You may use any one of the five protocols above. Because the ISP in different areas supports different protocol, you must choose the protocol supported by your ISP. 2) The VPI is the English abbreviation of the Virtual Path Identifier, the VCI is the English abbreviation of the Virtual Channel Identifier, and the value of VCI/VPI must be compatible with that provided by ISP. 3) Encapsulation mode of AAL5 include: LLC/SNAP and VC_MAX (often using LLC/SNAP).
Why the LANs and the NICs LEDs are both bright, but the configuration interface is inaccessible? 1) 2) 3) Use the order of ping 192.168.1.1 to check the Accuracy of connection. Check the Accuracy of working NIC. Check the setup of the IP address on your computer. If you disabled the DHCP function, the IP address cant be obtained automatically, so you have to specify the IP address for your computer manually. 4) Run the ipconfig command in the windows 2000 to check whether the IP address, subnet mask, and default gateway have been assigned by DHCP. 5) Reboot the ADSL Modem default configuration if necessary.
Have completed all configurations, but cant dial through computer 1) 2) Check the indicator of ADSL. It should be working normally. Check the value of VPI/VCI, Encapsulation mode of AAL5 and so on, and whether you 55
need to install the dial software, such as Winpoet, Enternet. 3) This product has the PPP dial procedure inside, so you will not need to use the dial software if your protocol is PPPoA or PPPoE. ADSL Modem will connect automatically. 4) You can check whether your ADSL Modem succeeds in connection or not with PING command.

Appendix B:

Default Configuration

ADSL2+ Modem Router

http://www.tplink.com/products/print.asp?pmodel=TD-8840
Print Spotlight: Latest ADSL standards for superior performance: up to 24Mbps downstream Various QoS policies enable various application, meeting peoples different needs High speed DSL connection, sharing Internet access Built-in 4-port Switch

Product Description:

TD-8840 uses integrated ADSL2+ transceiver and a 256-MHz MIPS32 CPU.The AFE supports full-rate ADSL connectivity conforming to the ITU and ANSI specifications; MIPS32 CPU with MMU and 16-KB I-cache/8-KB D-cache is integrated into the device. In addition to the basic DMT physical layer functions, the ADSL PHY supports dual latency ADSL Framing (fast and interleaved) and the I.432 ATM Physical Layer.TD-8840 is a complete plug-and-play solution. With standard Ethernet interface, it can be directly connected to any 10M/100M Ethernet devices,supporting Auto MDI/MDIX.
The TD-8840 uses ADSL (Asymmetric Digital Subscriber Line) technology for Internet connection speeds of up to 455x faster than dial-up, while using a standard phone line. With a built-in 4-port switch, up to four network-ready computers or devices can simultaneously be connected to the TD-8840 for access to the Internet.
The device comes with a CD with an Easy Setup Assistant that helps you step by step to complete your Internet connection, wireless network settings and security configurations. This feature allows even novice users to setup the router products without sacrificing any key features, just play the AUTO-RUN CD bundled to have your network set up quickly & hassle-free.
TD-8840 not only use html (web mode through Ethernet port) to configure the MODEM but also use external utility software, too. With TP-LINKs excellent design of circuit and high quality production, we guarantee ADSL MODEM a high performance, very good stability and easy to use.

Product Features:

Up to 24Mbps downstream speed Supports Annex M, which can double upstream data rates Built-in switch connects four local PCs directly, and daisy-chain out to more hubs and switches as your network grows Built-in DHCP server Administer and Upgrade the Router Remotely over the Internet Easy Setup Assistant provides quick & hassle free installation

Product Specifications:

Software Specification Full-rate ANSI T1.413 Issue 2 ADSL Features ITU-T G.992.1 (G.dmt) ITU-T G.992.2 (G.lite)

2010.12.14. 22:25

ITU-T G.994.1 (G.hs) ITU-T G.992.3 (G.dmt.bis) ITU-T G.992.5 Max 6 kilometers Downstream: Up to 24Mbps Data Rates Upstream: Up to 3.5Mbps (With Annex M enabled) UNI 3.1,ATM Adaptation Layer Type 5-AAL5 Multiprotocol encapsulation over ATM (RFC 1483) ATM Features UBR, CBR, VBR-rt, VBR-nrt Supports 8PVCs PPP over ATM (RFC 2364) PPP Features PPP over Ethernet (RFC 2516) Switching Features IEEE 802.1d transparent learning bridging Classical IP and ARP over ATM (RFC 1577/2225), MER Routing Features Static routing, IP, TCP, UDP, ARP NAT, NAPT, DNS, DDNS, DHCP Server UPnP, Virtual Server, DMZ, Port Trigger NAT IP filterling Security MAC filtering Parental control VPN Pass Through IPSec/PPTP/L2TP Pass-through IP Type of service(ToS) QoS 802.1p HTTP, TELNET, Console Administration and operation software (firmware) upgradable locally by web(HTTP), console(TFTP) SNMP Hardware Specification 4 10/100M LAN Ports(RJ45) Ports 1 Line Port(RJ11) LED Indicators Power, ADSL, Internet, LAN 1~4

Device Management

External Power Supply Dimensions (W*D*H)

9V/0.85A

6.9*4.7*1.1 in.(174x 120x28.8mm)
Operating Temperature: 0?~40? (32?~104?) Environment Storage Temperature: -40?~70? (-40?~158?) Operating Humidity: 10%~90% non-condensing Storage Humidity: 5%~90% non-condensing